Improvement in pumps



ignited 'idi -1 ETE`R M. SNELL AND oscaa sNnLL, or WILLiIAMsBURe, OHIO.

` Letters lratfmtI No. 106,226, dated August 9, 1870.

IMPROVEMENT IN PUMPS.

,i The `Schedule referred to in thse Lettera Patentaxid making part of thesame.

" and State of Ohio, have invented anew and useful Improvement in submerged Pumps.; and we do here- "byfde'clare that the following is a full, clear, and exact description thereof', whichwill enable others skilled in the art to makeand use the saine, reference .being had to the accompanying drawing forming .part oi' this specication. y

This invention relatesuto a new and nsefnlimprove'- ment inthat class of pumpswhich are submerged'or operate underwater, and consists in the construction and arrangement'of` parts hereinafter described.

`In the accompanying drawing- Fignre l represents a sectional elevation of a pump submerged and constructed according `to our invention. y A

Figure 2` is a detailed view of the piston and valves showingA the ports. f

Figure 3 is a view of one of the piston-plates.

`Similar letters of reference indicate corresponding parts. 'p v A is a standard, to which the pump-cylimler B is firmly attached.

15 is the hollow piston, `which is attached to Ythe lower end of the discharge-tube D.

j This tube is the piston-rod, and the power for opcratng the pnmpis applied thereto by means ofthe bell-crank E (whicliis pivoted tothe standard A) and the lever F, which is connectedwith the upright arm of thebell-crank, as seen4 inv the drawing..

G is a fixed partition in `the oylinderlr H H' are piston-plates, which have asliding motion on the'ends Vot' `the pistonand pipe, and which move with the piston as the'latter i's forced up and down.

t I represents orifices through these plates, which admit .water between the piston plates and the, partition up and. down by thevlever.

has forced the plate H in contact with the head J` which closes the orifices I and opens the ports O into' the piston, and forces water up the discharge-pipev D. At the other end ofthe piston the ports O are closed, and water is rushing through the oriiices J, which water will be forced into the piston and'up into the 'discharge-pipe when the motion of the'piston is reversed. y

There is, consequently, all alternate opening and closing of the orifices and ports as the pump is worked .It 4will be seen that this pump (as shown in the drawing) is a double-'acting force-pn|np, but the arrangement is readily modified so as to make it a single acting pump'. y

This is a simple and durable pump,l entirely free from i-ost in winter, and dependent upon noair-tight valves for its perfect action. Its advantagesover the ordinary pumps in use are many, and must be obvious 'to all.

` Having thus described our invention,

We claim` as new and desire to secure -by Lett-ers 1. In combination with the cylinder B, the piston G, the pistou-plates H H',tl1e head J J', the dischargepipe D, and the partition G, (through which the piston works,) arranged andoperating substantiallyas and for the purposes herein shown and described.

2. The hollow piston C, providedl with the ports I, and formed on orattached to thelower end of the discharge-pipe D, as shown and described.

`PIT/EER. M. SN ELL.

OSCAR SNELL.

Witnesses:

I. S.B. FRAZIER, JAMES ASHTON, 

